I studied biology at the Free University of Berlin and received my doctorate in 2004 with a focus on zoology. My own research focuses on acarology, entomology, phoresy, evolutionary biology, ecology and taxonomy. Between 2004 and 2014 I held courses with lectures at the FU Berlin and published more than 25 scientific articles. I have also worked on TV documentaries as a macro filmmaker and publish videos on my YouTube channel. I present photo projects on the Adobe Behance page https://www.behance.net/stefanwirth?locale=de_DE
I publish science communication articles on various of my channels.
Behavioral characteristics of an extremely old rhesus macaque in a zoo: Dementia-like symptoms and implications for quality of life of geriatric animals
Stefan Friedrich Wirth
Morphological variations in external genitalia do not explain the interspecific reproductive isolation in Nasonia species complex (Hymenoptera: Pteromalidae)
Stefan Friedrich Wirth
The cold tolerance of an adult winter-active stonefly: How Allocapnia pygmaea (Plecoptera: Capniidae) avoids freezing in Nova Scotian winters
Stefan Friedrich Wirth
LGBTQ+ realities in the biological sciences
Reinier Prosee et al.
Loss of a morph is associated with asymmetric character release in a radiation of woodland salamanders
Stefan Friedrich Wirth
Behavioral characteristics of an extremely old rhesus macaque in a zoo: Dementia-like symptoms and implications for quality of life of geriatric animals
The authors Y. Yamanashi et al. (2026) have since published their preprint on dementia-like behavioral traits in a particularly old female rhesus macaque in the journal Zoo Biology. In doing so, the researchers made minor adjustments to their paper; for instance, the “Materials and Methods” section was expanded to include two subheadings, “Subject” and “Data…
| Posted on | 6 July 2026 |
Morphological variations in external genitalia do not explain the interspecific reproductive isolation in Nasonia species complex (Hymenoptera: Pteromalidae)
This preprint, which addresses the lack of morphological cues preventing hybridization in the Nasonia-species-complex, has now been published in the journal Zoo Biology. The structure and content of the abstract and introduction remain unchanged in terms of scope and substance. Only minor rephrasings were made, such as using “conspecific” instead of “interspecific.” A minor, yet…
| Posted on | 6 July 2026 |
The cold tolerance of an adult winter-active stonefly: How Allocapnia pygmaea (Plecoptera: Capniidae) avoids freezing in Nova Scotian winters
The authors Jona Lopez Pedersen and team meanwhile published their 2025 preprint in the peer-reviewed journal The Canadian Entomologist in January 2026. This laboratory study is the first to comprehensively investigate fundamental aspects of cold tolerance and freeze avoidance in the winter-active stonefly Allocapnia pygmaea (Plecoptera, Neoptera). Compared to their preprint, the researchers have refined only…
| Posted on | 27 March 2026 |
Loss of a morph is associated with asymmetric character release in a radiation of woodland salamanders
This preprint about the evolutionary influences of polymorphisms in North American woodland salamanders by B. Waldron et al. (2025) has now been published in the peer-reviewed journal Evolution. The study examines the directions in which the morphological forms – striped, unstriped, and polymorphic – evolved and the respective rates of evolution. The authors found that…
| Posted on | 23 January 2026 |
